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Diff output from two programs without temporary files
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For anyone curious, this is how you perform process substitution in using the Fish shell:
Bash:
diff <(./a) <(./b)
Fish:
diff (./a | psub) (./b | psub)
Unfortunately the implementation in fish is currently deficient; fish will either hang or use a tem...
Look up all descendants of a class in Ruby
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– Douglas Squirrel
Mar 6 '10 at 20:01
1
singleton_class instead of Class make it much faster (se...
Get the latest record from mongodb collection
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JavaScript regex multiline flag doesn't work
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For performance issues, it is highly recommended to use the *? quantifier instead of * in order to avoid greediness. This will avoid catching the last <h1> of the document: that's probably not what you want and that's not effi...
.bashrc/.profile is not loaded on new tmux session (or window) — why?
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Former answers provided solutions but didn't explain the reason. Here it is.
This is related to the Bash init files. By default, ~/.bashrc is used in an interactive, non-login shell. It won't be sourced in a login shell. Tmu...
Convert Go map to json
...xchange.using('gps', function() { StackExchange.gps.track('embedded_signup_form.view', { location: 'question_page' }); });
$window.unbind('scroll', onScroll);
}
};
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How to avoid reinstalling packages when building Docker image for Python projects?
.../requirements.txt
---> 968a7c3a4483
Removing intermediate container 5f4e01f290fd
Step 3 : RUN pip install -r requirements.txt
---> Running in 08188205e92b
Downloading/unpacking pytest==2.3.4 (from -r requirements.txt (line 1))
Running setup.py (path:/tmp/pip_build_root/pytest/setup.py) egg_i...
How to copy a local Git branch to a remote repo
... in the origin repository by copying the current experimental branch.
This form is only needed to create a new branch or tag in the remote repository when the local name and the remote name are different; otherwise, the ref name on its own will work.
Or, like mentioned in git tip, you can set up a "...
Java Persistence / JPA: @Column vs @Basic
... Table, Column, ... In your question 'Basic' is an annotation to provide information about the relational entity attribute while 'Column' provides information on how to map it to a database column.
– Bruno Ranschaert
Nov 18 '15 at 8:19
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What is the recommended way to delete a large number of items from DynamoDB?
...KeyValue and RangeKeyCondition are separate parameters in this API and the former only targets the Attribute value of the hash component of the composite primary key..
Please note that you''ll have to deal with the query API paging here as usual, see the ExclusiveStartKey parameter:
Primary ke...